Toasty Toes

I was caught in this compromising position a few days ago ... making it look as if I was warming my feet up at the microwave.

I can assure it, it isn't what it looks like, despite the photo evidence. What do you think I'm up to? 

I was trying to relieve myself of back pain, and needed to find floor and wall space that were contiguous, without heaters and furniture obstructing the 90° angle that was needed.